Can somebody take bath (other than janabat which is compulsary) while he is observing masnoon iteqaf in the masjid. For example taking bath for freshness, body cleaning etc.
Under normal circumstances, leaving the Masjid for non-Fardh Ghusl only will break one's Sunnah I'tikaaf but if one leaves the Masjid with the intention of using the toilet and there he also uses the shower to make Ghusl then the I'tikaaf will remain effective.
And Allah knows best.
Mufti Ikram ul Haq
Fatwa Center of America